Controversies
Controversies tied to this brand in public sources. A listing is not a finding of fault.
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2024
Ransomware attack and extended service outage
A ransomware attack beginning June 19 took most CDK services offline and disrupted dealership operations across the United States and Canada. Reports linked the attack claim to a group believed to be BlackSuit. CDK undertook a staged restoration, while affected dealerships reported operational and financial losses and filed lawsuits alleging negligence.
2024
Dealer-management pricing and data-integration litigation
Dealership claims alleged that CDK and Reynolds and Reynolds conspired to impose unlawful prices in dealer-management and data-integration services. A settlement providing $100 million plus notice and administration costs was approved in February 2025.
2024
Tekion antitrust lawsuit
Tekion filed a federal antitrust action alleging that CDK withheld or delayed access to dealership operations data, making it harder for dealers to change systems and increasing switching costs.
2017
Authenticom antitrust and data-access dispute
Authenticom alleged that CDK and Reynolds and Reynolds coordinated to restrict third-party access to dealer-authorized data. A federal judge issued a preliminary injunction requiring the companies to stop blocking Authenticom's authorized data-integration services. CDK later settled with Authenticom.